HKS 15-21 Subaru WRX/STI Hipermax S Coilovers w/ Pillowball Front Upper Mount | 80300-AF009P

Here, you are looking at the HKS Hipermax S Pillowball Front Coilovers for the 2015-2021 WRX/STI. 

After 9 years after the launch of the MAXIV GT, the new HIPERMAX S series was born for superior “Driving Comfort" with advanced features in damping force, durability, and appearance.

Going beyond just ride comfort or handling performance, a new standard of "Driving Comfort" aims for comfort in ride but also in the peace of mind generated by handling performance and drivability. An uncompromising balance that delivers on all the demands of street driving.

The new HIPERMAX S series continues to employ the single-tube structure. The advantage of this structure is to be able to provide the gas and oil chamber separately, and then it allows to use of a large diameter piston. As a result, a quality and stable damping force is gained. The Pre-load Valve System, introduced in the previous MAX IV GT 20 Spec, S-Style L, and S-Style C, created a remarkable difference in handling performance.

This has been further refined to introduce “Dual PVS”. High-speed damping is reduced while keeping unnecessary movement to a minimum. The improved shape of the needle expands the oil relief channel. Each step of the 30-step adjustment is now more prominent. Having softer adjustment options gives more options for street driving.

 Features:

• Dual PVS - HKS Evolved the existing preload valve system to the dual preload valve system to suppress the generation of unnecessary damping force during higher piston speeds. This provides a major improvement in ride comfort without influencing ride performance. 

• Wide Range Damping Force Adjustment Needle - The improved shape of the needle jet expands the range of damping force adjustment. This makes it possible to handle a wider range of driving styles and stages.  

• Advanced Bump Stop Rubber - Developed which pursues further softness and also shorter variations delivering a wide range of options for a variety of cars delivering a natural and smooth experience.

• PNE coating - Delivers 5x better durability compared to standard galvanizing.

• Low Friction Technology - Achieves even higher durability and lower friction than conventional products. This technology contributes to improved ride quality and handling performance. 

• Single Tube Damper Design - The new HIPERMAX S series continues to employ the single tube structure. The advantage of this structure is to be able to provide the gas and oil chamber separately, and then it allows to use of a large diameter piston. As a result, a quality and stable damping force is gained.

• Inverted Shock Absorber (Strut) - Large lateral forces are spread over a larger area increasing rigidity under high loads or with larger wheels. The damper is attached to the body side reducing un-sprung weight for improved handling

• Strengthened Rubber Upper Mounts - Strengthened rubber upper mount is able to absorb small body vibrations whilst tightening up the mount over stock. Revised cross-sectional design and material composition balance comfort and performance

• "Kodawari" of Exterior - Kodawari - is a term in the Japanese language that describes obsession for perfection and attention to detail in devotion to making the best product. Featuring Chamfered upper plates, laser engraved logos, and coated in HKS' PNE Protection, these coilovers will hold up to the test of time.

• Spring Rates - 9K Front / 7K Rear spring rates provide a comfortable yet firm setup, allowing for a very daily driver-friendly level of comfort. 

• Ride Height Range - 0mm to -39mm Front / 0mm to -59mm Rear 
• Pillow Ball Front Top Hats - Allow for Camber Adjustment and sportier more responsive Steering

• 3-year warranty - Extensive in-house durability testing and development has resulted in an improved correlation between test bench and real road data and in-house manufacturing allows for quality control of all components which provides the necessary evidence to deliver the 3yr warranty with confidence.

Returns
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange. Please send an email to sales@jdmuscleusa.com or use our return portal located at the top of the page to set up a return.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Additional non-returnable items:

• Giftcards
• Special-ordered items, including anything custom products

If you choose to email us to initiate a return, please ensure to include the following information in your email:

• Your order number
• Item(s) that you wish to return
• Reason for returning

Please do NOT send your purchase back to the manufacturer

Please do NOT send back an item without setting up a return first

Depending on your method of payment, transaction fees might not be refundable which ranges between 2.3% - 6% of the order value. Note this is charged by a third-party payment provider, not us. You may receive a full refund if you choose to receive a store credit instead.

There are certain situations where only partial refunds are granted (if applicable)

• Any item not in its original condition/ is damaged or missing parts for reasons not due to our error
• Any item that is returned more than 30 days after delivery

Some manufacturers would charge a restocking fee ranging from 10% - 30% of the original order value. Below is a list of some but now all of them, please be mindful when placing the order / considering a return:

• ESR 30%
• JDMuscle 15%
• PLM 20%

Cancellation

Please ensure you have contacted us on availability before placing an order. All cancellations could be subject to 2.3% - 6% fee to cover transaction costs charged by third-party payment providers. You have 7 days to cancel an order, once the order has been processed(item packaged/ tracking number has been created), the cancellation will not be allowed but you may contact us for a return request if the item is eligible for return.

Special-ordered items cannot be canceled.

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 3-10 business days(depending on the payment provider). The restocking fee might be applicable as noted in the return section.

Late or missing refunds (if applicable)

Once you have received an email/text from us stating the refund has been processed, at this stage, it's completely out of our control but depends on the payment providers to decide when the refund will show up in your bank. As noted, depending on the payment provider the process can take up to 10 business days(usually 3-5). If you haven’t received a refund yet, please first check your bank statement. A lot of times instead of a new line showing a reversal charge/credit, the payment would just disappear from your pending section.

Contact your credit card company/financing company you used, it may take some time before your refund is officially posted but reaching out might help expedite the process.

If you’ve done all of the above and you still have not received your refund yet, please contact us at sales@JDMuscleUSA.com and one of our team members will provide assistance.

Sale items (if applicable)
Only full-priced items are eligible for return/refund.

Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at sales@JDMuscleUSA.com or use the return/exchange portal located on the top of the page.

Gifts
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be emailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping
You will be responsible for paying for your own shipping costs for returning your item unless the item was damaged/wrong/defective in which case we will cover shipping both ways. Initial shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item and take no responsibility for any loss or damage during the return shipping.

And please refer to the return shipping address as provided in the RMA / return instructions. A lot of times the return address can be different than the initial shipping address.

Pre-Installation Inspection Policy:

All parts or items received via mail must undergo a thorough inspection prior to installation. Any damage or imperfections identified during or after this inspection must be reported immediately to sales@jdmuscleusa.com, and the item should not be installed. Please note that reports of damage, defects, or imperfections submitted after installation will not be honored.

JDMuscle LIFETIME LIMITED WARRANTY POLICY

Effective for any JDMuscle product purchased on or after 2019/01/01

JDMuscle warrants its products under this Lifetime Limited Warranty Policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) JDMuscle products purchased directly from JDMuscle or authorized dealers, and (ii) the original purchaser of such JDMuscle products (“Purchaser”). This Warranty Policy is non-transferable and all claims must be accompanied by the original sales receipt. JDMuscle reserves the right to change the terms and conditions of this Warranty Policy at any time without notice.

Warranty Coverage

Under the terms of this Warranty Policy, if it is determined that a JDMuscle product was not manufactured to advertised specifications, JDMuscle will, at its discretion: (i) repair or replace the original product; (ii) replace the original product with the most current available model if the original is no longer available; or (iii) provide a gift card redeemable at jdmuscleusa.com for the amount of the original purchase price of the product.

This Warranty Policy also covers Racing Art products.

For non-JDMuscle branded products purchased through JDMuscle, we offer lifetime technical support in addition to the manufacturer’s warranty.

Submitting a Claim

To submit a warranty claim, the Purchaser must:

1. Email sales@jdmuscleusa.com with the claim details.
2. Provide the original sales receipt or an authorized dealer order number.
3. Include a photo of the product clearly showing the issue.

If requested, the Purchaser must send the product, with all transportation costs prepaid, to JDMuscle.

Special Conditions for Carbon Fiber Products

Carbon fiber products must be clear-coated by the customer upon receipt to maintain durability. This Warranty Policy covers only cracking caused by the product itself and not due to any impact, neglect, improper care, or use. Normal wear and tear, including minor scratches or fading, is not covered under this policy. Additionally, carbon fiber hoods must be installed with hood pins for safety. JDMuscle will not cover damage resulting from failure to use hood pins.

Warranty Exclusions

This Warranty Policy does not cover:

• Damage due to accidents, neglect, improper installation, or usage.
• Normal wear and tear, including stains, scratches, or other minor cosmetic issues.
• Issues arising from non-compliance with care, use, and installation instructions.
• Any damage to carbon fiber products not related to structural cracking.
• Labor costs for installation or removal of products.

JDMuscle is not responsible for any other property damage or personal injury related to the use or installation of its products.

General Warranty Guidelines

• All claims must be accompanied by a photo of the product showing the issue.
• Products damaged on arrival (DOA) must be claimed within 7 business days of delivery. Claims outside of this timeframe will not be covered under the lifetime warranty.
• JDMuscle reserves the right to refuse any claim at its discretion.
• Approved claims may result in repair, replacement, or a gift card equivalent to the original purchase price, at JDMuscle’s discretion.
• If a replacement product is out of stock, the customer will be placed on backorder until the product becomes available.
• All historical orders are covered under this Warranty Policy.

Shipping Guidelines

Repaired or replacement products will be shipped to the Purchaser within the continental United States via standard ground service. Expedited shipping and international shipping are available at an additional cost.

Shipping Costs

Shipping fees for repairs or replacements will vary based on the claim as follows:

• Standard Products (non-oversized): $25 if submitted within 90 days, $40 after 90 days.
• Oversized Items (e.g., hoods, large aero parts): $120 if submitted within 90 days, $150 after 90 days.
• Accessories: $15 if submitted within 90 days, $25 after 90 days.

For claims submitted more than two years after the purchase date, an additional $20 surcharge will apply.

General Disclaimer

THE WARRANTIES SET FORTH HEREIN ARE THE ONLY WARRANTIES MADE BY JDMUSCLE WITH RESPECT TO ITS PRODUCTS. JDMUSCLE DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THE PURCHASER ASSUMES ALL RISKS RELATED TO THE USE OF JDMUSCLE PRODUCTS.

Limitation of Liability

No claim by the Purchaser shall exceed the purchase price of the product. JDMUSCLE SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS OR BUSINESS OPPORTUNITIES, ARISING FROM THE USE OR INABILITY TO USE JDMUSCLE PRODUCTS.

For further information or assistance, please contact our customer support.

Returns
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange. Please send an email to sales@jdmuscleusa.com or use our return portal located at the top of the page to set up a return.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Additional non-returnable items:

• Giftcards
• Special-ordered items, including anything custom products

If you choose to email us to initiate a return, please ensure to include the following information in your email:

• Your order number
• Item(s) that you wish to return
• Reason for returning

Please do NOT send your purchase back to the manufacturer

Please do NOT send back an item without setting up a return first

Depending on your method of payment, transaction fees might not be refundable which ranges between 2.3% - 6% of the order value. Note this is charged by a third-party payment provider, not us. You may receive a full refund if you choose to receive a store credit instead.

There are certain situations where only partial refunds are granted (if applicable)

• Any item not in its original condition/ is damaged or missing parts for reasons not due to our error
• Any item that is returned more than 30 days after delivery

 Some manufacturers would charge a restocking fee ranging from 10% - 30% of the original order value. Below is a list of some but now all of them, please be mindful when placing the order / considering a return:

• ESR 30%
• JDMuscle 15%
• PLM 20%

Cancellation

Please ensure you have contacted us on availability before placing an order. All cancellations could be subject to 2.3% - 6% fee to cover transaction costs charged by third-party payment providers. You have 7 days to cancel an order, once the order has been processed(item packaged/ tracking number has been created), the cancellation will not be allowed but you may contact us for a return request if the item is eligible for return.

Special-ordered items cannot be canceled.

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 3-10 business days(depending on the payment provider). The restocking fee might be applicable as noted in the return section.

Late or missing refunds (if applicable)

Once you have received an email/text from us stating the refund has been processed, at this stage, it's completely out of our control but depends on the payment providers to decide when the refund will show up in your bank. As noted, depending on the payment provider the process can take up to 10 business days(usually 3-5). If you haven’t received a refund yet, please first check your bank statement. A lot of times instead of a new line showing a reversal charge/credit, the payment would just disappear from your pending section.

Contact your credit card company/financing company you used, it may take some time before your refund is officially posted but reaching out might help expedite the process.

If you’ve done all of the above and you still have not received your refund yet, please contact us at sales@JDMuscleUSA.com and one of our team members will provide assistance.

Sale items (if applicable)
Only full-priced items are eligible for return/refund.

Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at sales@JDMuscleUSA.com or use the return/exchange portal located on the top of the page.

Gifts
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be emailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping
You will be responsible for paying for your own shipping costs for returning your item unless the item was damaged/wrong/defective in which case we will cover shipping both ways. Initial shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item and take no responsibility for any loss or damage during the return shipping.

And please refer to the return shipping address as provided in the RMA / return instructions. A lot of times the return address can be different than the initial shipping address.

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